锅炉技术2023，Vol.54Issue(6)：8-13,27,7.
清洁高效超超临界二次再热燃煤发电机组优化设计和应用
Optimal Design and Application of Clean and Efficient Ultra-Supercritical Double Reheat Coal-Fired Power Generation Units
摘要
Abstract
In order to promote energy conservation and emission reduction,and improve the economic as social benefits of the unit,the second phase expansion project of Huaneng Ruijin Power Plant(2×1 000 MW ultra-supercritical double reheat unit)adopts clean and high-effi-cient double reheat ultra supercritical coal-fired power generation technology,efficient and energy-saving back pressure extraction steam turbine(abbreviation:BEST small turbine)technology with integrated frequency conversion power generation and system,as well as a 12 stage regenerative system with 5 HP heaters,6 LP heaters,and 1 dearator.The flue gas desulfurization and denitrification facilities were built at same time,and the unit parameters has been increased from the conventional 31 MPa/600 ℃/620 ℃/620 ℃ to 31 MPa/605 ℃/622 ℃/620 ℃,and BEST small turbine technology has been adopted,achieving a unit effi-ciency of 49.25％;The flue gas collaborative treatment technology route is adopted to mini-mize the emission concentration of nitrogen oxides,particulate matter,sulfur dioxide,PM2.5,etc.,with the desulfurization efficiency of more than 99.4％and SO2 concentration of less than 20 mg/mt(O2=6％);The denitrification efficiency shall not be less than 90％,and the NOx value shall not exceed 28 mg/m3(O2=6％).关键词
清洁高效/二次再热/超超临界/燃煤发电Key words
clean and high-efficient/double reheat/ultra-supercritical/coal-fired power generation分类
能源科技引用本文复制引用
罗建松..清洁高效超超临界二次再热燃煤发电机组优化设计和应用[J].锅炉技术,2023,54(6):8-13,27,7.基金项目
国家重点研发计划项目(2018YFB0604400 （）
2018YFB0604405) （）
上海市2020年度"科技创新行动计划"社会发展科技攻关项目(20DZ1205103) （20DZ1205103）
